Width: 1/8"
Chain Number: 25
Half Link for #25 Roller Chain

Width: 3/16"
Chain Number: 35
Half Link for #35 Roller Chain

Width: 5/16"
Chain Number: 40
Half Link for #40 Roller Chain

Width: 1/4"
Chain Number: 41
Half Link for #41 Roller Chain

Width: 1/8"
Chain Number: 43
Half Link for #43 Roller Chain

Width: 3/16"
Chain Number: 42
Half Link for #42 Roller Chain

Width: 3/8"
Chain Number: 50
Half Link for #50 Roller Chain

Width: 5/16"
Chain Number: 420
Half Link for #420 Roller Chain

Width: 5/16"
Chain Number: 428
Half Link for #428 Roller Chain

Width: 1/2"
Chain Number: 60
Half Link for #60 Roller Chain